1c4762a1bSJed Brown 2c4762a1bSJed Brown static char help[] = "Tests timing PetscSortInt().\n\n"; 3c4762a1bSJed Brown 4c4762a1bSJed Brown #include <petscsys.h> 5c4762a1bSJed Brown 6c4762a1bSJed Brown int main(int argc,char **argv) 7c4762a1bSJed Brown { 8c4762a1bSJed Brown PetscInt i,n = 1000,*values; 9956f8c0dSBarry Smith #if defined(PETSC_USE_LOG) 10956f8c0dSBarry Smith PetscLogEvent event; 11956f8c0dSBarry Smith #endif 12c4762a1bSJed Brown PetscRandom rand; 13c4762a1bSJed Brown PetscReal value; 14c4762a1bSJed Brown PetscErrorCode ierr; 15c4762a1bSJed Brown PetscBool values_view=PETSC_FALSE; 16c4762a1bSJed Brown PetscMPIInt rank; 17c4762a1bSJed Brown 18c4762a1bSJed Brown ierr = PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr; 19*ffc4695bSBarry Smith ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank);CHKERRMPI(ierr); 20c4762a1bSJed Brown ierr = PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL);CHKERRQ(ierr); 21c4762a1bSJed Brown ierr = PetscOptionsGetBool(NULL,0,"-values_view",&values_view,NULL);CHKERRQ(ierr); 22c4762a1bSJed Brown 23c4762a1bSJed Brown ierr = PetscRandomCreate(PETSC_COMM_SELF,&rand);CHKERRQ(ierr); 24c4762a1bSJed Brown ierr = PetscRandomSetFromOptions(rand);CHKERRQ(ierr); 25c4762a1bSJed Brown 26c4762a1bSJed Brown ierr = PetscMalloc1(n,&values);CHKERRQ(ierr); 27c4762a1bSJed Brown for (i=0; i<n; i++) { 28c4762a1bSJed Brown ierr = PetscRandomGetValueReal(rand,&value);CHKERRQ(ierr); 29c4762a1bSJed Brown values[i] = (PetscInt)(n*value + 2.0); 30c4762a1bSJed Brown } 31c4762a1bSJed Brown ierr = PetscSortInt(n,values);CHKERRQ(ierr); 32c4762a1bSJed Brown 33c4762a1bSJed Brown ierr = PetscLogEventRegister("Sort",0,&event);CHKERRQ(ierr); 34c4762a1bSJed Brown ierr = PetscLogEventBegin(event,0,0,0,0);CHKERRQ(ierr); 35c4762a1bSJed Brown 36c4762a1bSJed Brown for (i=0; i<n; i++) { 37c4762a1bSJed Brown ierr = PetscRandomGetValueReal(rand,&value);CHKERRQ(ierr); 38c4762a1bSJed Brown values[i] = (PetscInt)(n*value + 2.0); 39c4762a1bSJed Brown } 40c4762a1bSJed Brown ierr = PetscSortInt(n,values);CHKERRQ(ierr); 41c4762a1bSJed Brown ierr = PetscLogEventEnd(event,0,0,0,0);CHKERRQ(ierr); 42c4762a1bSJed Brown 43c4762a1bSJed Brown for (i=1; i<n; i++) { 44c4762a1bSJed Brown if (values[i] < values[i-1]) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_PLIB,"Values not sorted"); 45c4762a1bSJed Brown if (values_view && !rank) {ierr = PetscPrintf(PETSC_COMM_SELF,"%D %D\n",i,values[i]);CHKERRQ(ierr);} 46c4762a1bSJed Brown } 47c4762a1bSJed Brown ierr = PetscFree(values);CHKERRQ(ierr); 48c4762a1bSJed Brown ierr = PetscRandomDestroy(&rand);CHKERRQ(ierr); 49c4762a1bSJed Brown 50c4762a1bSJed Brown ierr = PetscFinalize(); 51c4762a1bSJed Brown return ierr; 52c4762a1bSJed Brown } 53c4762a1bSJed Brown 54c4762a1bSJed Brown /*TEST 55c4762a1bSJed Brown 56c4762a1bSJed Brown test: 57c4762a1bSJed Brown args: -values_view 58c4762a1bSJed Brown 59c4762a1bSJed Brown TEST*/ 60